n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 8 |
5 | 29 |
6 | 140 |
7 | 998 |
8 | 12139 |
9 | 273400 |
10 | 11991356 |
11 | 1018707920 |
12 | 165078860603 |
13 | 50500999728875 |
14 | 29053989521339474 |
15 | 31426435300576595334 |
16 | 64000986599534312444935 |
17 | 245935832697890955733422940 |
18 | 1787577661113111145804012075034 |
19 | 24637809007125076355873926288686728 |
[0,1,1,3,8,29,140,998,12139,273400,11991356, 1018707920,165078860603,50500999728875, 29053989521339474,31426435300576595334, 64000986599534312444935, 245935832697890955733422940, 1787577661113111145804012075034, 24637809007125076355873926288686728] |